Halo: Combat Evolved Anniversary

EDIT #2: It appears the easiest way to do this is to turn on the bandana skull (unlimited ammo) and the boom skull (explosions have bigger radius) and chuck grenades over the wall to the left at the beginning of the level. So just chuck grenades over that wall until you get all of the enemies, or you can try my method below. Credit goes to Robert m b for figuring this out



Some people are having a hard time with this achievement, and I'm suspecting that it might be glitched. It may take you a few tries but as long as you are cautious and patient you will eventually unlock it. If you still can't get it, try playing with a friend in co-op to see if that makes things easier.


It's best to put the game on easy, that way all of the enemies can be killed with one shot. After that, just follow the steps in the video, and you shouldn't have much trouble. The key is to keep your distance. These are the ten enemies:

1 Elite
2 Jackels
3 Grunts walking around or in a gunner seat
4 Grunts sleeping

Once you have taken out all of the enemies on the right side, hug the wall on the right, and slowly creep up to take out the remaining enemies on the left (usually it's just two grunts, with one in a turret in the top left hand corner).

The guy in the video misses a sleeping grunt on the right side, so make sure you get him before walking out. As soon as you shoot the last enemy, the achievement will unlock (though I've heard it's been buggy for some people).

If you are having some trouble, try backing all the way up after each kill, just to make sure you are out of sight. Then wait around five seconds before you move back up again.

When I first attempted this achievement I kept on going to the ridge on the right side that overlooks the area, and I never got more than 1-2 kills before I was spotted. But like I said if you follow the video you shouldn't have too much trouble.


****EDIT: If the covenant start running around, that does not mean they have detected you. Only when they start shooting, or if you miss a shot and they look right at you. Thanks to JPG30 and FA Aras Cade for pointing that out****

This is not my video by the way, credit goes to ADRRGamingUK on youtube

This one is rather simple, load up Truth and Reconciliation on easy and make your way to the sniping point. Spawn areas seem to randomise each time. In total there is

1 Elite
2 Jackels
3 Grunts walking around or in a gunner seat
4 Grunts sleeping

If you can take out the ones walking around first you can walk in the area and pick them off, be careful though as there are at least 2 possible grunt sleeping spots below where you snipe.

If you have done it right the achievement should pop before the covenant come around the corner if not simply revert last save and try again.

I did seem to do this several times without it working, might be a tad buggy.

Simply sniper the Covenant one at a time, I hid behind the tree at the beginning and popped out to kill some of the enemies then hugged the wall to the right to take out the remaining Grunts. This achievement is not buggy you can be detected but not shot at if you shoot them whilst they are running in order to shoot you. Generally, if they are running you might as well hit revert to last save. NOTE: I only used sniper, no skulls or grenades.

In my video i show you how to get All According to Plan without spamming grenades and the second half of the video is me telling you how to get Close Quarter Combat

This is very simple.

First of all: you want to put the difficulty on easy. Not that it makes much of a difference, but it does sound easier.

Second: Do not go any further than the first or second major rock on the right incline. Be patient and they will start running around. Then you can just pick them off.

The biggest thing that you do not want to do is alert the stationary turrets otherwise your screwed. After all of the enemies have been taken out, slowly move up the incline to where you can just barely see the turret on the far edge of the cliff.

This achievement is not glitched. I love how people cannot get achievements, so they say it is glitched. You just have to do it right. It may take a few tries, but just be patient and move slowly, and take them all out!

Behind the ridge that cortana tells you to recon from is a rock in a sort of U shape that allows you to stand behind and shoot from with a fairly high chance of staying hidden.

I stood behind that and shot two or three enemies and crouched down and threw my grenades and waited a few seconds for the covenant to stop looking. Once they stopped I slowly creeped up and shot the rest one by one.

Using this spot only took me two two tries as opposed to failing ten times whilst on the ridge.

Good luck!

You should sneak up to the side of the first rock. Make sure the crouch setting is on toggled so this will be easier. First, you should take out the Elite Major, move over on the hill and snipe him from behind the bush. Carefully, one at a time pick off covenant. Move every time you fire so they don't see you. If any covenant fire at you, you have to restart the mission. If you see enemies begin to walk down the hill on the far side of the valley and you haven't gotten the achievement, you have to restart.

Throwing the grenades over the wall with Bandanna and Boom Skulls on works however you must first kill all your Marines as they run in a little early and void the Achievement. I tried it many times without killing the Marines and it would never work, first time I killed the Marines it worked

There are 10 enemies to kill. They are:

1 Elite (Can be red or blue, most likely blue on lower difficulties)
2 Jackels
7 Grunts (3 are in turrets/walking 4 are sleeping, unless you wake them up)

If the grunts wake up, or run around, you will STILL get the achievement, though they are harder to get if they wake up. Make sure to do it on easy, and with a bandana skull. (If you have it.)

MAKE SURE TO GET THE GRUNT IN THE VERY RIGHT CORNER BEHIND THE ROCKS, AT THE END OF THE SIDE PASSAGE!!! I kept on missing it over and over again, hope you don't miss!!!